Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Margaret Mary Robertson, RN

Registered Nurse in Madison, WI · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1730381401

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Margaret Mary Robertson

Credential RN

Sex Female

Practice address 49 Kessel Ct, Madison, WI, 53711

Phone (608) 280-2700

Enumeration date Jun 4, 2007

Last updated in NPPES Jun 2, 2023

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 119252-30 (WI) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Margaret Robertson?

Margaret Robertson is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-02.